Simplify.
? 3
A. 10
B. 108
C. 
D. 
Answer: B
Mathematics
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Evaluate or simplify the given expression.cos-1 
A. ?
B. 
C. 
D. 0
Mathematics
Simplify the expression.sin(? - x) cos x + cos(? - x) sin x
A. ? B. sin(2x + ?) C. 0 D. 1
Mathematics
Solve the problem.From April through December 2015, the stock price of QRS Company had a roller coaster ride. The chart below indicates the price of the stock at the beginning of each month during that period. Find the monthly average rate of change in price between June and September.
A. $11.50 per month B. -$11.50 per month C. -$7.67 per month D. $7.67 per month
Mathematics
Write the rational number as a decimal and state whether the decimal is repeating or terminating.- 
A. -0.
repeating
B. -0.8 terminating
C. -0.8
repeating
D. -0.
repeating
Mathematics